if ((RETAIL_TYPE == 'AR' || RETAIL_TYPE == 'TR') 
  && SUPERMARKET_FLAG == 'Y' 
  && isNull(ON_TAB_FLAG)) {
  '{"CODE":2, "ACTION":"CHECKING_REPORT","LEVEL":"", "MSG":"未确认是否为Tab商品，请在Tab列选择","DATA":""}';
} else {
  '{"CODE":0, "ACTION":"","LEVEL":"", "MSG":"","DATA":""}';
}